Abstract

A general equation is developed for the efficiency of an integrating sphere with a nonuniform coating. The only assumptions are that the interior is a perfect sphere and that all areas reflect perfectly diffusely. Three special cases of the general equation are examined for the basic applications of integrating spheres as mixing mechanisms in hemispherical reflectance measurements and in absolute reflectance techniques.

© 1967 Optical Society of America

A 5-m Integrating Sphere

Mamoru Nonaka, Takeo Kashima, and Yataro Kondo
Appl. Opt. 6(4) 757-764 (1967)

Theory of the Integrating Sphere

Jonn A. Jacquez and Hans F. Kuppenheim
J. Opt. Soc. Am. 45(6) 460-470 (1955)

Quantitative theory of integrating sphere throughput: comparison with experiments

Adam Francis, Chhayly Tang, and Eric C. Le Ru
Appl. Opt. 60(18) 5335-5344 (2021)

Fluorescent Integrating Sphere for the Vacuum Ultraviolet

W. M. Brandenberg
Appl. Opt. 9(2) 451-457 (1970)

Integrating Sphere for the Infrared

James C. Morris
Appl. Opt. 5(6) 1035-1037 (1966)